Author's Note: This story is similar to Pokemon Mystery Dungeon. But it's completely different.
Disclaimer: I do not own Keroro Gunso. But I do own Tirara.

Full Summary: A human girl wakes up one day and finds out that she has been turned into a Keronian. Found and taken in by Taruru, she now must live a life as an alien soldier to assist the Garuru Platoon in their goal to take over Earth and defeat the Keroro Platoon. However, an old legend threatens the girl's very life as she is pushed into a fit of survival to find the truth to why she is turned into a Keronian.


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Private Tirara

Chapter 1: Enter Tirara

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...Where am I? Am I dreaming this?... I feel a pleasant breeze...I hear a voice from somewhere...I wonder who it is...

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Superior Private Taruru was hovering above the town of Tokyo on his hovercraft. Having his anti-barrier on, he didn't need to worry about the Pekopons seeing him flying around. The blue frog was now searching the skies for anything occuring by the Keroro Platoon. He looked down to the ground below, seeing a local park with a few people enjoying themselves with their activites. Huh? What's that? The blue frog spotted something on the ground below, lying motionless on the grass. Taruru thought it was another Keronian, but when he soared closer to the trees, he realized it was.

A young, purple Keronian tadpole was sleeping soundly on the grass, feeling welcome by the sounds of the birds singing and the wind blowing smoothly. It wore a pink headgear that had a small symbol of a blue crescent moon. There was also a large version of the symbol on its white stomach, and by the looks of it, the purple Keronian was a female. She snored softly as she laid and slept comfortably on the softness of the grass. Luckily, she was out of sight from the Pekopons.

Taruru directed his aircraft down to the ground as it landed quietly, still hovering above the grass. He got off his transportation and walked over to the unconscious Keronian, reaching out a hand and shaking her shoulder, "...Excuse me...Hello? Come on, say something."

After hearing the Taruru's voice, the young, purple Keronian slowly woke up from her nap and moaned softly, opening her eyes and groggily rising up to her knees.

"You're finally awake! Finally!" Taruru responded happily. The purple tadpole looked around, seeing only a large, blue blur in front of her along with the blurs of bushes and trees. The tadpole girl waited until her vision sharpens, but something the world around wasn't recognizable to her. Wh-where is this...?

Once her vision sharpened, the tadpole girl saw Taruru in front of her, smiling. "You were passed out here." He said, "I was getting worried."

"Y-You c-can talk?!" The tadpole girl said shockingly, stuttering, "But...you're a frog!"

Taruru was confused, raising an eyebrow, "So what? You're talking too and you're a frog. In other words, a Keronian tadpole. You must've been hit on the head by something hard."

"Huh?!" The Keronian tadpole was confused at the Taruru's statement, but when she turned over to a pond next to her, she saw her reflection and shrieked loudly in shock once she saw herself as a Keronian. Her eyes remained the same, sky blue to dark blue, but when looked to her back, the Keronian girl saw a tadpole tail. It...It's true...I've been turned into a frog!...But why...I can't remember anything...This has to be a bad dream...

Taruru walked up to the tadpole girl, a bit confused about her reaction. "Um...You're kinda weird..." He said, "Well, anyway, what's your name?"

The purple tadpole replied, "...It's Tirara."

"Tirara? That's a funny name! Ha ha!" Taruru laughed, unaware that the purple Keronian sweatdropped upon hearing that her name was funny, "I'm Superior Private Taruru. Glad to meet you! Are you here for the invasion too?"

Tirara echoed, scratching her face, "Invasion? Invasion of what?"

"The invasion of Earth, of course." Taruru replied, then he smirked to the purple tadpole, "Right now, I can tell you're a rookie sent by headquarters to find a platoon to join, huh?"

Tirara began, "Well..."

"Great!" Taruru exclaimed, interrupting Tirara's sentence, "I'm sure my leader wouldn't mind adding you into the team...If you don't have a place to stay, you should come with me."

Tirara started again, "But..."

"Come on. We don't want to be seen." Taruru interrupted again, walking behind Tirara and gently pushing her onto his aircraft. Tirara was then standing on the green hovercraft as Taruru got on in front of her and gripped his control sticks.

"What is this?" Tirara asked, seeing the shimmering colors of the anti-barrier on her body.

"You don't know?" Taruru asked, a bit suprised, "This is an anti-barrier. No one can see or hear us as long it's on. We can't let any Pekoponians see us or there'll be a commotion. Man, for a rookie, you sure do have to remember your training."

Pekopons...? Tirara repeated in her thoughts, Does he mean the people? I don't understand this. And why does he think I'm from some headquarters? WAH!

Tirara nearly fell off as Taruru directed his aircraft to the sky and it launched skyward. She quickly wrapped her arms around the blue Keronian's waist to keep herself from falling. The wind beat down on her as Taruru kept moving his transportation skyward. Finally, when Tirara was sure she would lose her grip and fall, the gale lessened as Taruru leveled his craft. The wind whipped under Tirara's headgear while she was moving, she kept her eyes closed in fear of looking down to the ground below.

Minutes later, Taruru spoke out, directing his craft to the ship, "Well, this is the place..." Tirara slowly opened her eyes and widened them upon seeing something extraordinary in front of her. Floating before Taruru was a gray, massive spaceship, large enough to rival an airplane. It also had the anti-barrier around it so the people wouldn't see or hear it pass by.

"Woooooow!" Tirara gushed out with a wide smile, quite amazed to see a real-live spaceship floating before her. She felt her small, tail wagging behind her. This is so cool! And my tail's wagging too! So this is how it feels when you're happy.

Taruru smirked, "Heh. I knew you'd be impressed. This is our base. Hold on, we're going to land in the deck." Feeling Tirara gripping his waist, Taruru pushed the controls stick forward as the aircraft soared toward the ship at full speed, seeing the door of the hangar opening wide. The small aircraft then hovered into the hangar along with its passengers, disappearing into the darkness as its door slowly closed shut...